Albert r



(No Model.)

A. R. ENGLISH.

SCALE BEAM.

Patented June 19. 1883.

UNITED STATES PATENT OFFICE.

ALBERT R. ENGLlSI-I, OF ROCHESTER, nEwroEK.

SCALE-BEAM.

SPECIFICATION forming part of Letters Patent No. 279,548, dated June 19, 1883.

Application filed May 8,1882. (No model.)

,To all whom it may concern:

Be it known that I, ALBERT R. ENGLISH, of Rochester, in the county of Monroe and State of New York, have invented certain Improvements in Scale-Beams, of which the following is a specification, reference being had to the accompanying drawings.

rest, fork, and turret, all as hereinafter more fully described and specified.

My improved scale-beam is represented in the accompanying drawings, in which Figure 1 is a side elevation. Fig. 2 is a transverse section through the beam. Fig. 3 is a vertical section through the beam and poises, on the line :10 :12, Fig. 1. Fig. 4 is a side elevation of the upper poise and the pound beam and weight. Fig. 5 is a section through the pound-beam. Fig. 6 is an elevation of one of the poises. Fig. 6 represents a modification of the balance-lever. Fig. 8 is an end view of the rest.

In the accompanying drawings, A represents a portion of the frame-work of the scales, which supports the rest B and scale-beam O. D D are the sliding poises; E, the counter poise, and F the balance-lever. G is the poundweight, and H H the removable bars applied to the edges of the beam 0.

The rest B, whiohsupports the scale-beam O, is cast in one piece, being provided with lugs '1: t, by which it is secured to the bed or frame A by bolts or screws, and with a fork,

j, at one end provided with openings to' receive the fulcrum-pin 7:, which passes through the scale-beam. At its other end the rest is provided with a forked turret, 1, provided with a swinging stop, a, which serves to limit the travel of the free end of the scalebeam.

The scale-beam O has applied to its upper beam by screws located at suitable distances.

apart along the lengtlrof the beam. The poises D D are formed with T-shaped slots, as represented in the side view, Fig. 6, to adapt them to the beam 0 and bars H H. Each sliding poise is provided with a pointer, m m, Fig. 1, which indicates the weight placedon the platform by means of the graduated scales on the edges of the beam 0. For small measurements the upper poise, D, has attached thereto an arm, 01, Fig. 1., which iscast in one piece with the cap of the poise, and is provided with a graduated scale and a small sliding weight, G.

In Fig. 4 I-have represented a modification 'of the arrangement of the arm and smaller weight, whereby a greaterlength in the graduated scale is secured,- the weight G being cast with a tapering or wedge-shapedslot, and the arm a being made of a corresponding crosssection, as shown in Fig. 5.

F is the balance-lever, which is connected to the scale-beam by the usual clevises and connecting-rod 0, Fig. 1. The balance-lever is fill crumed in a yoke, P, fastened to the framework A, and sustains the platform by the rod Q. The balance-lever is provided with the sliding counterpoise E, which may be adjusted lengthwise on the lever until the weight of the platform, its levers, and connections, are exactly counterbalanced by the sliding poises standing at the zero-point of the scale-beam. The counterpoise E fastened to the balancelever by a set-screw when properly located. In Fig. 7 l. have represented a modification in which. the counterpoise E is attached to the balance-lever F between the connections 0 and Q. By combining the counterpoise with the balancelever I am enabled to obtain a greater range of adiustment, andto relieve the connection 0 from any unnecessary straiin I am aware that scale-beams have been heretofore provided with a projecting ledge or flange by which the sliding weight was se cured to the beam, the weight being provided with a removable plate or cap, by which provision is made for applying or detaching it from the beam, as shown, for instance, in the Patent of Keeler, No. 57,921, September 11, 1866, and such arrangement I do not claim. By my improved construction I am enabled to form the weight in one piece without detachable parts, while at the same time the arrangement permits of its removal from the beam by taking oil the bar H, which receives all the wear caused by the movement of the weight, and may be replaced at any time, if desired, without in any way disturbing or defacing the scale 011 the beam. The bar may be made of harder metal than the beam, for the purpose of affording greater resistance to wear.

I claim 1. The combination, with the beam 0, provided on one edge with a graduated scale, and having the projecting bar H removably secured thereto, of the slotted poise D, fitted to slide on the bar, substantially as and for the 15 purposes set forth. r I

2. The combination,\viththe frame A, graduated beam 0, weight D, connection 0, and balance-lever F, of the rest B, provided with fork j and slottedturret Z, all cast in one piece, 20 substantially as and for the purposes set forth.

A. R. ENGLISH. Witnesses:

GEO. B. SELDEN, H. G. P ILLTPs. 

